Blue Thumb Altum AquaBox®

Premium 52" Altum AquaBox® Fountain Basin System

Experience the pinnacle of fountain basin engineering with Blue Thumb's patented Altum AquaBox®. Proudly produced in-house in the USA, this 52" basin represents the perfect balance of generous water capacity, exceptional structural strength, and surprisingly manageable weight. Designed to support expensive and heavy fountain installations while providing a plentiful 220-gallon water reservoir, the Altum AquaBox® is the professional's choice for large or multiple fountain configurations.

The innovative 2-piece removable grate system features integrated pump access with a protective cover, making maintenance simple without compromising the clean aesthetic of your installation. With a maximum static load capacity of 2,000 lbs and the option to add support columns for even heavier fountains, this basin delivers the strength and reliability demanded by premium water feature installations.

Product Specifications

• Overall Dimensions: 52.5" diameter × 20" high
• Full Grate Dimensions: 48" × 48" × 2.8" H
• Basin Inner Seat: 48" × 48"
• Water Capacity: 220 gallons
• Maximum Static Load: 2,000 lbs
• Weight: Approximately 145 lbs (basin, grates, and pump access cover)
• SKU: AB52AB
• Made in USA: Proudly manufactured in-house by Blue Thumb

Complete Basin Kit Includes

• Reservoir Basin: Heavy-duty basin with 4 molded support columns
• 2-Piece Grate Cover: Removable grate system for complete basin coverage
• PVC Center Support Column: Additional structural support for fountain installations
• Pump Access Cover: Protective cover for pump access opening keeps debris out when not in use

Key Features & Benefits

• Generous Capacity: 220-gallon reservoir supports large fountains and multiple water features
• Exceptional Strength: 2,000 lb maximum static load handles heavy stone fountains, columns, and spheres
• Lightweight Design: At 145 lbs, surprisingly manageable for its size and capacity
• Easy Pump Access: 2-piece grate with integrated access opening and protective cover
• Expandable Support: Additional support columns can be added for heavier fountain installations
• Professional Grade: Patented design trusted by landscape professionals nationwide
• Made in USA: Quality American manufacturing ensures superior construction and reliability
• Versatile Application: Suitable for large single fountains or multiple fountain configurations

Patented AquaBox® Design

Blue Thumb's patented AquaBox® technology represents years of engineering refinement. The Altum basin incorporates several innovative features that set it apart from conventional fountain basins:

• Molded Support Columns: Four integrated support columns distribute weight evenly across the basin structure
• Optimized Wall Thickness: Engineered for maximum strength while minimizing weight
• Reinforced Grate Seat: The 48" × 48" inner seat provides stable, level support for the grate system
• Strategic Capacity: 220 gallons balances ample water volume with manageable installation size
• Modular Support System: PVC center column plus optional additional columns accommodate various fountain weights

2-Piece Grate System

The innovative 2-piece grate design offers significant advantages over single-piece systems:

• Easier Handling: Two smaller pieces are more manageable than one large grate
• Integrated Pump Access: Built-in access opening eliminates need to remove entire grate for maintenance
• Protective Cover: Included pump access cover keeps debris out while maintaining clean appearance
• Complete Coverage: Combined 48" × 48" coverage provides full basin protection
• Removable Design: Easy to remove for deep cleaning or seasonal maintenance

Ideal Applications

The Altum AquaBox® excels in demanding fountain installations:

• Large Stone Spheres: Support 24"+ diameter basalt, granite, or limestone spheres
• Multiple Fountain Sets: Accommodate triple vase sets, multiple columns, or grouped boulders
• Tall Basalt Columns: Provide stable foundation for dramatic vertical water features
• Heavy GFRC Fountains: Support substantial glass fiber reinforced concrete installations
• Custom Water Features: Versatile platform for unique or artistic fountain designs
• Commercial Installations: Reliable performance for high-visibility public or business locations

Recommended Add-On Products

Enhance your Altum AquaBox® installation with these professional accessories:

• Auto Fill Valve with 30 PSI Regulator: Automatic water level maintenance eliminates manual refilling
• Mesh Sediment Screen: Reduces debris falling through grate into basin, protecting pump and reducing maintenance
• Splash Apron: Prevents water loss from splash and evaporation around basin perimeter
• Polished Pebbles (4-5 bags): Black or mixed color pebbles create professional finished appearance covering grate
• Altum AquaBox® Aluminum Grates: Optional reinforced grates provide additional strength for extremely heavy installations

Installation Considerations

Site Preparation: Excavate area to accommodate 52.5" diameter × 20" height. Ensure level, stable base with proper drainage around basin perimeter.

Basin Placement: Position basin level using the 4 molded support columns as reference points. The basin must be perfectly level for proper grate fit and fountain stability.

Support Configuration: Install included PVC center support column. For fountains exceeding 1,000 lbs or with concentrated point loads, consider adding optional support columns.

Grate Installation: Place 2-piece grate system on the 48" × 48" inner seat. Orient pump access opening for convenient maintenance access.

Professional Installation: Due to the 145 lb weight and precision required for proper leveling, professional installation is recommended.

Maintenance Access

The integrated pump access system makes routine maintenance simple:

• Remove pump access cover to check water levels
• Access pump for cleaning or adjustment without moving fountain
• Add water treatments or perform water quality tests
• Inspect plumbing connections and make adjustments
• Replace pump access cover to keep debris out when finished

Load Capacity & Support

With a 2,000 lb maximum static load, the Altum AquaBox® handles substantial fountain installations. The load capacity assumes:

• Proper basin leveling and installation
• Weight distributed across grate surface (not concentrated at single point)
• Use of included center support column
• Additional support columns for loads exceeding 1,000 lbs or concentrated point loads
• Standard grates (upgrade to aluminum grates for maximum strength)

Made in USA Quality

Blue Thumb produces the Altum AquaBox® in-house, ensuring:

• Consistent quality control throughout manufacturing
• Premium materials and construction techniques
• Rigorous testing and quality assurance
• American craftsmanship and engineering excellence
• Reliable customer support and replacement parts availability

Important Shipping Information: Due to the substantial weight (151 lbs) and size of this product, it must ship via commercial freight. This item does not qualify for standard free shipping promotions. Freight shipping costs will be calculated based on your location at checkout.

Frequently Asked Questions

Q: What size fountains can the Altum AquaBox® support?
A: The basin supports up to 2,000 lbs maximum static load, making it suitable for large stone spheres (24"+), triple fountain sets, tall basalt columns, and heavy GFRC installations. Use additional support columns for loads over 1,000 lbs.

Q: How much water does the basin hold?
A: The Altum AquaBox® has a 220-gallon capacity, providing ample water volume for large fountains and reducing refill frequency.

Q: What's included in the basin kit?
A: The kit includes the reservoir basin with 4 molded supports, 2-piece grate cover, PVC center support column, and pump access cover. Everything you need for basic installation is included.

Q: Do I need the aluminum grates, or are the standard grates sufficient?
A: Standard grates work well for most installations. Upgrade to optional aluminum grates for extremely heavy installations (triple basalt columns, multiple large spheres) or when maximum strength is required.

Q: How do I access the pump for maintenance?
A: The 2-piece grate system includes an integrated pump access opening with a removable cover. Simply remove the cover to access pumps, check water levels, or perform maintenance without disturbing your fountain.

Q: Can I install this basin myself?
A: While experienced DIYers can install the basin, professional installation is recommended due to the 145 lb weight and the precision required for proper leveling. Proper leveling is critical for grate fit and fountain stability.

Q: How many bags of pebbles do I need to cover the grate?
A: We recommend 4-5 bags of polished pebbles (40 lbs each) in black or mixed colors to properly cover the 48" × 48" grate area.

Q: Is the Auto Fill Valve necessary?
A: While not required, the Auto Fill Valve paired with a 30 PSI regulator is highly recommended for automatic water level maintenance, especially for large fountains with higher evaporation rates.

Q: What's the difference between Altum and Achelous basins?
A: The Altum is the larger basin (52.5" diameter, 220 gallons, 2,000 lb capacity) designed for large or multiple fountains. Achelous basins are smaller options for more compact installations.

Q: Why does this ship via freight?
A: Due to the substantial weight (151 lbs) and size (52.5" diameter), the basin requires commercial freight shipping to ensure safe delivery. Freight carriers have proper equipment to handle large, heavy items.